Both Labour leader Sir Keir Sternmer and Angela Rayner, the deputy leader of Labour, were cleared of violating Covid rules at a Durham gathering on 30 April 2021.
In a statement, police stated that Durham Constabulary would not issue any fixed penalty notices for the gathering. No further action will be taken.
Sir Keir was seen through a window with a bottle in his hand. Ms Rayner and Ms Rayner both stated that they would resign if they were punished.
The Labour leader replied to the police decision by saying that he had always maintained that no rules were broken while he was in Durham. Police have concluded their investigation and have found no evidence to support the claim.
Ms Rayner tweeted "Integrity is important in politics. It's impossible to see the contrast between this disgraced Prime Minster's behavior and Ms Rayner's.
The Labour leader's picture was taken during the campaign for the 6 May Hartlepool By-election. It was taken at the City of Durham MP Mary Foy's office - within Durham Miners' Hall.
He can be seen holding a bottle, while his colleagues can be seen behind him with plates.
Sir Keir explained that the takeaway was ordered by the office workers.
He told Good Morning Britain that all restaurants and pubs were closed, so takeaways were the only option.
"So, this was brought in. At various points people went to the kitchen and got a plate.
England was subject to "Step 2", which were introduced on 12 April.
It was illegal to gather indoors with anyone outside your household or support circle.
Although "work purposes" was exempted, it was suggested that you work from home. However, the guidelines did not mention socializing at work.
There was also an exception if the gathering was "reasonably necessary for the purposes campaigning in an election".
Outdoor service was allowed at bars, pubs, and restaurants, but not indoors.
Police were asked to determine if Labour officials drinking and eating together was "reasonably required for work".
Durham Police examined the footage of Keir Sterner in February and concluded that it didn't believe there was an offence.
On 6 May, a spokesperson stated: "Following receipt of significant new data over the recent days Durham Constabulary have reviewed that position."
On 8 July, Durham Police confirmed that they had not found any evidence to support their conclusion. They stated that "a substantial amount of documentary witness and witness evidence was obtained that identified the 17 participants as well as their activities during that gathering."
Labour initially claimed that Angela Rayner, its deputy leader, was not present at the event. However, Labour later admitted that this statement was a "mistake" that was made in good faith.
According to a spokesperson for the BBC, there was no reason to hide Ms Rayner's presence as no lockdown rules were broken.
The government also issued guidelines for workplaces in addition to the legal restrictions.
At the time, it was clear that workers should not meet at work unless they are absolutely necessary and should keep their social distance.
This meant that you should keep your feet at least two metres apart, or at most one meter apart.
The guidance also suggested that meetings be held outdoors whenever possible and that ventilation like air conditioning and open windows and doors should be used if indoor meetings are required. The guidance did not include alcohol.
Before the May 2021 elections, the government provided additional guidance on campaigning.
It stated that it was essential that campaigning be allowed during the campaign period leading up to the polls on 6 May. However, all campaigning activities must follow the applicable rules regarding gatherings and social distance.
It was also advised that you should not meet indoors with campaigners.
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